Agilent Technologies 66319B User Manual page 132

8 – Language Dictionary
*OPC does not prevent processing of subsequent commands, but bit 0 will not be set until all pending
operations are completed.
*OPC? causes the instrument to place an ASCII "1" in the Output Queue when all pending operations are
completed. Unlike *OPC, *OPC? prevents processing of all subsequent commands. It is intended to be
used at the end of a command line so that the application program can then monitor the bus for data until
it receives the "1" from the dc source Output Queue.
Command Syntax *OPC
Parameters None
Query Syntax *OPC?
Returned Parameters <NR1> 1
Related Commands *OPC
*OPT?
This query requests the dc source to identify any options that are installed. Options are identified by
number. A 0 indicates no options are installed.
Query Syntax *OPT?
Returned Parameters <AARD>
*PSC
This command controls the automatic clearing at power-on of the Service Request Enable and the
Standard Event Status Enable registers. The query returns the current state of *PSC.
*PSC ON | 1 causes these registers to be cleared at power-on. This prevents a PON event from
generating SRQ at power-on.
causes the contents of the Standard Event Enable and Service Request Enable registers
*PSC OFF | 0
to be saved in nonvolatile memory and recalled at power-on. This allows a PON event
to generate SRQ at power-on.
Command Syntax *PSC <Bool>
Parameters 0 | 1 | OFF | ON
Example *PSC 0
Query Syntax *PSC?
Returned Parameters <NR1>0|1
Related Commands *ESE
CAUTION:
*PSC causes a write cycle to nonvolatile memory. Nonvolatile memory has a finite
maximum number of write cycles. Programs that repeatedly cause write cycles to
nonvolatile memory can eventually exceed the maximum number of write cycles and
cause the memory to fail.
132
*TRIG *WAI
*PSC 1
*SRE